Metal clamp



FIG. 1 is a top perspective view of the metal clamp in accordance with a first embodiment of the design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines in the figures represent portions of the metal clamp that forms no part of the claimed design. 

CLAIM The ornamental design of a metal clamp, as shown and described. 